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3 years ago

A horizontal line on a distance-time graph means the object is

2 answers:

8 0

A horizontal line on a distance-time graph means that as time goes on, the object's distance is not changing. That pretty much has to mean that the object is at 'rest'.

Phantasy [73]3 years ago

6 0

I believe the answer is D hope it helps.

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A 3.0 g bullet traveling at a speed of 400 m/s enters a tree and exits the other side with a speed of 200 m/s. Where did the bul

cricket20 [7]

Answer:

1800J

Explanation:

Step one:

given data

mass of bullet m= 3g= 0.03kg

initial velocity u = 400m/s

final velocity v= 200 m/s

Step two:

1.The bullet's lost kinetic energy went inside the tree.

2. The energy transferred is computed as

= initial KE- KE final

Initial KE= 1/2mu^2

Initial KE= 1/2*0.03*400^2

Initial KE= 1/2*0.03*160000

Initial KE= 1/2*4800

Initial KE= 2400J

KE final= 1/2mv^2

KE final= 1/2*0.03*200^2

KE final= 1/2*0.03*40000

KE final= 1/2*1200

KE final= 600J

KE transferred = 2400-600

KE transferred= 1800J

6 0

3 years ago

If a 370 KG missile is flying at a speed of 220 m/s , then what is it’s kinetic energy

lidiya [134]

Answer:

8954000 J

Explanation:

The formula to find kinetic energy is:

Kinetic energy = $\frac{1}{2}$ × mass × (velocity)²

So, Kinetic energy = $\frac{1}{2}$ × 370 × (220)²

Kinetic energy = 8954000 J

4 0

2 years ago

Which toy car had the greatest applied force?

andreyandreev [35.5K]

what are the choices

7 0

3 years ago

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3. Label the parts of each wave. Please help me!!!

lisabon 2012 [21]

Answer:

D is the wavelength

A is the crest

C is amplitude

B is trough

G is wavelength

H is compression

I is rarefaction

4 0

3 years ago

List five instruments of mechanical fluid

Ludmilka [50]

The Barometer: The barometer is a device meant for measuring the local atmospheric pressure. ...
Piezometer or Pressure Tube: ...
Manometers: ...
The Bourdon Gauge: ...
The Diaphragm Pressure Gauge: ...
Micro Manometer (U-Tube with Enlarged Ends):

8 0

3 years ago

Read 2 more answers